Vigilante Marcus Cole would be a terrifying thing, assuming he still had the same powerset as his Primal Earth/Axis Earth counterparts. The world would literally be living in fear of him - how can you deal with a man who's nigh unto invulnerable, can call down lightning from on high, and can stop a tank in its tracks one-handed?
Worse yet is if he's one of those "collateral damage is acceptable so long as villains are taken off the streets" vigilantes. If your apartment building just so happens to house a large number of gangbangers, or has a villain's lair beneath its basement without your knowledge, you could wake up one day to find the building collapsing around you in an effort to bury the wrongdoers.
Statesman, as we know him, was an inspiration for many, many heroes. Without him as a respected public figure, and with him as a source of fear and panic, I doubt the world would see superhumans in a very favorable light. Vigilante Cole would be pointed to by all the naysayers in favor of superhuman regulation (or even extermination) as an example of the kind of suffering supers can wreak on ordinary people in the pursuit of their no-holds-barred ideals of justice. This, ironically, would probably create more supers like Vigilante Cole - society decries them as monsters and their government would be happier if they were dead or slaves to the system; the only way to remain 'free' and maybe do some good in the world is vigilante superheroics.
Supergroups as we know them probably wouldn't exist; the idea of several potent superhumans banding together under a common ideal would probably be cause for breaking out the military. SGs would be rather more covert things than they already are, taking great care not to advertise their presence unless they're powerful enough that openly challenging the military wouldn't be a problem for them. SG bases would likely be smaller and far more well-hidden.
Superscience would be far less common. The idea of super-advanced technology, even relatively inoffensive supertech, getting into the hands of common people would be unthinkable - what if they were to weaponize it? Technology is a superhero origin after all, and you never know who might be the next gadgeteer genius who can turn a nuclear toaster into a death ray. Governments would likely abduct such superhumans, using them to create equipment to deal with the "metahuman menace."
I could see groups like Malta and the Knives of Artemis thriving in such a parallel universe. Who knows, this sort of change might even produce a "Malta Earth."
